9cg3

Human kidney respiratory complex III

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Cytochrome b-c1 complex subunit 8

OrganismNot specified

UniProt O14949

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name QCR8_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–82; UniProt 1–82 Author chain N; PDBConstruct 1–82; UniProt 1–82

Cytochrome b-c1 complex subunit Rieske, mitochondrial

OrganismNot specified

UniProt P47985

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name UCRI_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 1–274; UniProt 1–274 Author chain P; PDBConstruct 1–274; UniProt 1–274

Cytochrome b-c1 complex subunit 9

OrganismNot specified

UniProt Q9UDW1

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name QCR9_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain D; PDBConstruct 1–63; UniProt 1–63 Author chain Q; PDBConstruct 1–63; UniProt 1–63

Cytochrome b-c1 complex subunit 6, mitochondrial

OrganismNot specified

UniProt P07919

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name QCR6_HUMAN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain E; PDBConstruct 1–91; UniProt 1–91 Author chain R; PDBConstruct 1–91; UniProt 1–91

Cytochrome b-c1 complex subunit 7

OrganismNot specified

UniProt P14927

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name QCR7_HUMAN
Isoform —
PDB entities 5
Chains and sequence ranges Author chain F; PDBConstruct 1–111; UniProt 1–111 Author chain S; PDBConstruct 1–111; UniProt 1–111

Cytochrome b-c1 complex subunit 10

OrganismNot specified

UniProt O14957

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name QCR10_HUMAN
Isoform —
PDB entities 6
Chains and sequence ranges Author chain G; PDBConstruct 1–56; UniProt 1–56 Author chain T; PDBConstruct 1–56; UniProt 1–56

Cytochrome c1, heme protein, mitochondrial

OrganismNot specified

UniProt P08574

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CY1_HUMAN
Isoform —
PDB entities 7
Chains and sequence ranges Author chain H; PDBConstruct 1–325; UniProt 1–325 Author chain U; PDBConstruct 1–325; UniProt 1–325

Cytochrome b

OrganismNot specified

UniProt P00156

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CYB_HUMAN
Isoform —
PDB entities 8
Chains and sequence ranges Author chain J; PDBConstruct 1–380; UniProt 1–380 Author chain V; PDBConstruct 1–380; UniProt 1–380

Cytochrome b-c1 complex subunit 2, mitochondrial

OrganismNot specified

UniProt P22695

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 1, mitochondrial × 2 (P31930) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name QCR2_HUMAN
Isoform —
PDB entities 9
Chains and sequence ranges Author chain K; PDBConstruct 1–453; UniProt 1–453 Author chain W; PDBConstruct 1–453; UniProt 1–453

Cytochrome b-c1 complex subunit 1, mitochondrial

OrganismNot specified

UniProt P31930

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 20 Cytochrome b-c1 complex subunit 8 × 2 (O14949) Cytochrome b-c1 complex subunit Rieske, mitochondrial × 2 (P47985) Cytochrome b-c1 complex subunit 9 × 2 (Q9UDW1) Cytochrome b-c1 complex subunit 6, mitochondrial × 2 (P07919) Cytochrome b-c1 complex subunit 7 × 2 (P14927) Cytochrome b-c1 complex subunit 10 × 2 (O14957) Cytochrome c1, heme protein, mitochondrial × 2 (P08574) Cytochrome b × 2 (P00156) Cytochrome b-c1 complex subunit 2, mitochondrial × 2 (P22695) FE2/S2 (INORGANIC) CLUSTER × 2 HEME C × 2 PROTOPORPHYRIN IX CONTAINING FE × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name QCR1_HUMAN
Isoform —
PDB entities 10
Chains and sequence ranges Author chain L; PDBConstruct 1–480; UniProt 1–480 Author chain Y; PDBConstruct 1–480; UniProt 1–480

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id9cg3
Deposition date deposition_date2024-06-28
Structure title titleHuman kidney respiratory complex III
Keywords keywordshuman, kidney, respiratory complex III, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

9cg3__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

9cg3__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

9cg3__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)54.75 Å
Rg (electron density)53.83 Å
Total Rg54.01 Å
Atom count31844
Residues3994
Excluded volume568900 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 9cg3__assembly_1__model_1 20-meric (20) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (13)

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7. Citations (1)